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US 10,369,620 B2Granted
Bearing pin upset method to retain high hardness pins
AssigneeEaton Corporation
InventorsMark Edward Jacobs, Joshua Gurganious
Life of this patent
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Abstract
A method of upsetting an axle with a peen tool according to one example of the present disclosure includes contacting a distal end surface of the peen tool with a first terminal end of the axle. The distal end surface of the peen tool has a relief portion formed on the distal end surface that includes a concave profile. An area of the axle is displaced based on the contacting.
Claims15
A method of upsetting an axle with a peen tool, the method comprising:
- oscillating a distal end surface of the peen tool around a first radius of a first terminal end of the axle causing a first deformation and a first bulbous axle end to be formed;
- subsequent to forming the first bulbous axle end, advancing a second terminal end of the axle through (i) a first axle hole defined in a tapped body, (ii) a bearing, and (iii) a second axle hole defined in the tappet body;
- and
- oscillating the distal end surface of the peen tool around a second radius of the second terminal end of the axle causing a second deformation and a second bulbous axle end to be formed;
- and
- capturing the bearing for rotational movement around the axle in the tappet body.
3 more elements
A method of upsetting an axle with a peen tool, the method comprising:
- contacting a distal end surface of the peen tool with a first terminal end of the axle causing a first deformation and a first bulbous axle end to be formed;
- subsequently advancing a second terminal end of the axle through (i) a first axle hole defined by a first receiving wall of a tappet body, (ii) a bearing, and (iii) a second axle hole defined by a second receiving wall of the tappet body;
- and
- subsequently contacting the distal end surface of the peen tool with a second terminal end of the axle causing a second deformation and a second bulbous axle end to be formed,
- wherein the distal end surface of the peen tool includes a relief portion having a concave profile,
- wherein the first and second bulbous axle ends are each disposed outboard of an outer surface of the tappet body defining the first and second axle holes,
- wherein the axle has an intermediate portion extending from the first bulbous axle end to the second bulbous axle end,
- wherein the intermediate portion has a constant diameter.
5 more elements
Dependencies are inferred from the claim text.